Assign the following experiment to an orthogonal array. There 6 Two level factors, Angle, Temp, Direction, Height, Preheat, and Speed

There are 8 interactions: Angle x Height, Angle x Speed, Height x Speed, Height x Temp.

Speed x Preheat, Speed x Direction, Speed x Temp and Preheat x Temp. Consult the linear diagrams for an L16

to answer these questions:

1. Find Total DOF from all factors required to conduct the experiment

2. Smallest Orthogonal Array that can be used 3. Column Assignments to each factor, please draw them on a linear graph in part 4.

4. Show Linear Graph used to conduct the experiment.